/**
 * Image zoom
 * 
 * @param  String    Image path
 */
function imageZoom(imagePath,imageWidth,imageHeight) {
	document.getElementById("overlay").style.display = '';
	document.getElementById("overlay_frame").style.display = '';
	margin = imageHeight/2;
	margin = '0 0 -'+margin+'px 0';
	document.getElementById("image_zoom_distance").style.margin = margin;
	document.getElementById("image_zoom").style.width = imageWidth+'px';
	document.getElementById("image_zoom").style.width = imageWidth+'px';
	document.getElementById("image_zoom").style.height = imageHeight+'px';
	document.getElementById("zoomImage").src = imagePath;
}

/**
 * Close image zoom
 * 
 * @param  String    Image path
 */
function closeImageZoom() {
	document.getElementById("overlay").style.display = 'none';
	document.getElementById("overlay_frame").style.display = 'none';
	document.getElementById("zoomImage").src = '';
}